A Simple Three-Column Layout
Step 1 - No styling yet - this is the default layout. In this example, we are going to use absolute positioning to create a three column layout, which is also a very common page layout you will see on the Web. This format enables you to follow the widely adopted convention of placing navigation in a vertical "stack" on the left side, and using the right column for things like testimonials, promotions, ads or other links.
In this design, we'll fix the width of the side columns and, because we won't specify the content div's width, the content column will be "fluid" and fill the rest of the browser's width.